Sprunstron
聚丙烯化纤
🗣️ 情景例句
He knows all there is to know,
他无所不知，
I want you to work for yourself, and for the well-being fo the society.
我认为你们应为自己工作，为这个社会的幸福而工作。
With experience, and with improved apparatus,
根据经验和改进了的仪器，